Description of elements in the header
m_ssamount of monthly sunshine duration
m_sxthe maximum sunshine duration in the month
m_sxdthe day with the maximum sunshine duration
m_dsf20number of days when the sunshine duration is less than 20 % of the astronomic sunshine duration
m_dsf80number of days when the sunshine duration is more than 80 % of the astronomic sunshine duration
1950.m_ssm_sxm_sxdm_dsf20m_dsf80
January93.67.21950-01-23121
February88.79.21950-02-23142
March195.111.01950-03-2567
April177.911.21950-04-0161
May282.214.01950-05-30310
June305.914.41950-06-1227
July311.314.31950-07-25211
August299.613.31950-08-11213
September183.811.51950-09-1383
October166.59.71950-10-07105
November43.06.81950-11-27230
December11.95.11950-12-01290